A Hammer toe is a misshapen second, third, or fourth toe. The toe bends up hammertoes at the middle joint. The toe becomes a hammertoe because a muscle in the toe isn?t working properly or is too weak, increasing pressure on the tendons and the toe joints. Muscles normally work in twos to bend and straighten toes. If the toe stays bent too long, a hammertoe develops. Ill-fitting shoes, arthritis, heredity, even an injury, can cause the hammertoe to form. To add insult to injury, corns and calluses are common on top of hammertoes because the toe is rubbing against the shoe.

Causes

The main cause of hammer toe is poorly fitted and/or poorly designed footwear. Any footwear that is too tight in the toe box, especially high-heeled shoes, can push the toes forward, crowding one or more of them into a space that is not large enough to allow the toes to lie flat and spread as they should. Other causes include the following. Changes in foot anatomy. Sometimes the metatarsal bones in the ball of the foot can ?drop,? creating a situation in which the toes do not make contact with the surface of the shoe. The toes may then contract at one or both of the joints to re-establish contact with the surface. Traumatic injuries in which toes are jammed or broken. Diabetic neuropathy. This can cause abnormal foot biomechanics due to nerve and/or muscle damage. Damage to nerves and muscles from other conditions, such as arthritis or stroke. Heredity.

Symptoms

The most obvious symptom of hammertoe is the bent, hammer-like or claw-like appearance of one or more of your toes. Typically, the proximal joint of a toe will be bending upward and the distal joint will be bending downward. In some cases, both joints may bend downward, causing the toes to curl under the foot. In the variation of mallet toe, only the distal joint bends downward. Other symptoms may include Pain and stiffness during movement of the toe, Painful corns on the tops of the toe or toes from rubbing against the top of the shoe's toe box, Painful calluses on the bottoms of the toe or toes, Pain on the bottom of the ball of the foot, Redness and swelling at the joints. If you have any of these symptoms, especially the hammer shape, pain or stiffness in a toe or toes, you should consider consulting your physician. Even if you're not significantly bothered by some of these symptoms, the severity of a hammertoe can become worse over time and should be treated as soon as possible. Up to a point hammertoes can be treated without surgery and should be taken care of before they pass that point. After that, surgery may be the only solution.

Diagnosis

A hammertoe is usually diagnosed with a physical inspection of your toe. Imaging tests, such as X-rays, may be ordered if you have had a bone, muscle, or ligament injury in your toe.

Non Surgical Treatment

Inserts in your shoes can be used to help relieve pressure on the toes from the deformity. Splints/Straps. These can be used to help re-align and stretch your toes and correct the muscle imbalance and tendon shortening. One of the most common types are toe stretchers like the yogatoe. Chiropody. A chiropodist can remove calluses or corns, areas of hard skin that have formed to make the foot more comfortable.Steroid injections can help to reduce pain and inflammation.

Surgical Treatment

If these treatments are not sufficient at correcting the hammer toe, an operation to straighten the toe may be necessary. This is often performed in conjunction with surgery for a bunion deformity. The surgical treatment of a hammer toe can consist of either cutting the tendons to relieve the pressure that causes the deformity, or fusing the toe so that it points straight permanently.

During a normal gait cycle, the forward movement is a result of the body's mass being displaced, putting the body in a forward-falling position. At this time, the lead foot hits the ground preventing the fall, followed by the rear leg as it swings forward, and the cycle repeats with each step.

Causes

Acquired "Flat Feet" this develops over a period of time rather than at birth (unlike Congenital "Flat Feet"). In children, many different factors may contribute to the development of this condition such as the type of shoes that a child wears, a child's sitting or sleeping positions or it may occur as some type of compensation for other abnormalities located further up the leg. Compensation may occur due to the rupture (tearing) of ligaments or tendons in the foot. One common reason for this condition is that the foot is compensating for a tight Achilles Tendon. If this tendon is tight it may cause the foot to point downward away from the body. This gives the body the perception that the affected leg is longer in length and the body attempts to compensate for the perceived additional length by flattening out the foot arch in an attempt to provide balance and stability.

To easily get an idea of whether a person overpronates, look at the position and condition of certain structures in the feet and ankles when he/she stands still. When performing weight-bearing activities like walking or running, muscles and other soft tissue structures work to control gravity's effect and ground reaction forces to the joints. If the muscles of the leg, pelvis, and feet are working correctly, then the joints in these areas such as the knees, hips, and ankles will experience less stress. However, if the muscles and other soft tissues are not working efficiently, then structural changes and clues in the feet are visible and indicate habitual overpronation.

Non Surgical Treatment

An orthotic is a device inserted inside the shoe to assist in prevention and/or rehabilitation of injury. Orthotics support the arch, prevent or correct functional deformities, and improve biomechanics. Prescription foot orthoses are foot orthoses which are fabricated utilizing a three dimensional representation of the plantar foot and are specifically constructed for an individual using both weightbearing and nonweightbearing measurement parameters and using the observation of the foot and lower extremity functioning during weightbearing activities. Non-prescription foot orthoses are foot which are fabricated in average sizes and shapes in an attempt to match the most prevalent sizes and shapes of feet within the population without utilizing a three dimensional representation of the plantar foot of the individual receiving the orthosis.

Surgical Treatment

Calcaneal "Slide" (Sliding Calcaneal Osteotomy) A wedge is cut into the heel bone (calcaneus) and a fixation device (screws, plate) is used to hold the bone in its new position. This is an aggressive option with a prolonged period of non-weightbearing, long recovery times and many potential complications. However, it can and has provided for successful patient outcomes.

Sever?s disease, also referred to as calcaneal apophysitis, is an injury in the growth plate of the lower part of the heel bone where the Achilles tendon attaches to the bone. Sever?s disease is a common condition affecting children between the ages of 8 and 15 that participate in sports or are particularly active. This condition is believed to be caused by repeated trauma to the heel, weakening its internal structure. Typically occurring in adolescence, Sever?s disease causes painful inflammation of the growth plate. This condition can affect any child, however there is a higher probability of its occurrence if the child experiences pronation, has flat or high arches, short leg syndrome and/or is overweight.

Causes

The large calf muscles attach to the heel via a large tendon called the Achilles tendon (See image below). The function of this tendon is to transmit forces produced by the calf muscles to the heel bone. In children, the portion of the heel bone into which the Achilles tendon inserts is separated from the bulk of the heel bone by a growth plate. This growth plate enables bone growth to occur. However, it also represents a site of weakness in the bone. Forcible and repeated contraction of the calf muscles can injure the growth plate. This commonly occurs during a period of rapid growth where the muscles and tendons become tighter as the bones grow. This leads to increased pulling of the calf muscles and Achilles tendon on the heel bone and growth plate.

Symptoms

Symptoms include Heel Pain. Pain at the back of the heels when walking or running. Possibly a lump at the back of the heel, although this might be minimal. Pain and tenderness at the back of the heels, especially if you press on it, or give it a squeeze from the sides. Tight calf muscles resulting in reduced ankle range of motion.

Diagnosis

Sever?s disease can be diagnosed based on your history and symptoms. Clinically, your physiotherapist will perform a "squeeze test" and some other tests to confirm the diagnosis. Some children suffer Sever?s disease even though they do less exercise than other. This indicates that it is not just training volume that is at play. Foot and leg biomechanics are a predisposing factor. The main factors thought to predispose a child to Sever?s disease include decrease ankle dorsiflexion, abnormal hind foot motion eg overpronation or supination, tight calf muscles, excessive weight-bearing activities eg running.

Non Surgical Treatment

Treatment includes modifying activities and resting to reduce pain and inflammation and take pressure off the growth center. Ice can also be very helpful in relieving symptoms, as well as anti-inflammatory medication. A physical therapy program should be initiated to stretch tight calf muscles and strengthen the ankle muscles to relieve tension on the growth center. Shoes with padded heel surfaces and good arch support can decrease pain. Cleats may need to be avoided for some time to help reduce symptoms. The doctor may also recommend gel heel cups or supportive shoe inserts.

There are generally two kinds of leg length discrepancies. Structural discrepancy occurs when either the thigh (femur) or shin (tibia) bone in one leg is actually shorter than the corresponding bone in the other leg. Functional discrepancy occurs when the leg lengths are equal, but symmetry is altered somewhere above the leg, which in turn disrupts the symmetry of the legs. For example, developmental dislocation of the hip (DDH) can cause a functional discrepancy. In DDH, the top of the leg bone (femur) that is not properly positioned in the hip socket may hang lower than the femur on the other side, giving the appearance and symptoms of a leg length discrepancy.

Causes

A patient?s legs may be different lengths for a number of reasons, including a broken leg bone may heal in a shorter position, particularly if the injury was severe. In children, broken bones may grow faster for a few years after they heal, resulting in one longer leg. If the break was near the growth center, slower growth may ensue. Children, especially infants, who have a bone infection during a growth spurt may have a greater discrepancy. Inflammation of joints, such as juvenile arthritis during growth, may cause unequal leg length. Compensation for spinal or pelvic scoliosis. Bone diseases such as Ollier disease, neurofibromatosis, or multiple hereditary exostoses. Congenital differences.

Symptoms

The effects of a short leg depend upon the individual and the extent of discrepancy. The most common manifestation if a lateral deviation of the lumbar spine toward the short side with compensatory curves up the spine that can extend into the neck and even impacts the TMJ. Studies have shown that anterior and posterior curve abnormalities also can result.

Diagnosis

A qualified musculoskeletal expert will first take a medical history and conduct a physical exam. Other tests may include X-rays, MRI, or CT scan to diagnose the root cause.

Non Surgical Treatment

The way in which we would treat a LLD would depend on whether we have an anatomical or functional difference. To determine which one is causing the LLD you will need to get your legs measured. This is the easiest way to determine if it is anatomical or functional. With a functional LLD we must first determine the cause and treat the cause. Should the cause be one that is not correctable then we may need to treat the LLD as if it were an anatomical or may have to treat the opposite leg to improve one's gait. As for the anatomical LLD, we may start off with a heel lift only in the shoe and follow up to see if we will need to put the lift full sole on the bottom of the shoe. This is determined by the affects that a heel lift in one shoe may have on that knee. Should the LLD be more than 1/4 inch we usually recommend starting between 1/8 inch to 1/4 inch less than the actual amount and let the body adjust to the change and then raise up to the measured amount later.

Surgical Treatment

The bone is lengthened by surgically applying an external fixation device to the leg. The external fixator, a scaffold-like frame, is connected to the bone with wires, pins, or both. A small crack is made in the bone and the frame creates tension when the patient or family member turns its dial. This is done several times each day. The lengthening process begins approximately five to 10 days after surgery. The bone may lengthen 1 millimeter per day, or approximately 1 inch per month. Lengthening may be slower in a bone that was previously injured. It may also be slower if the leg was operated on before. Bones in patients with potential blood vessel abnormalities, such as cigarette smokers, may also need to be lengthened more slowly. The external fixator is worn until the bone is strong enough to support the patient safely. This usually takes about three months for each inch. Factors such as age, health, smoking and participation in rehabilitation can affect the amount of time needed.